Highly available, consistent, business rule filters

In this paper we investigate the problem of providing web service interception hooks while maintaining consistency, high availability and durability for Web Service transactions. We consider ways of adding runtime configurable interception hooks for after release customization while guaranteeing the correctness of the entire transaction. We study integration hooks that offer an opportunity for optimization by allowing the hook to request additional data in the incoming request and process that data on the outgoing response. In our previous work, we proposed a replica update propagation method called the Buddy System, which guaranteed consistency, durability and increased availability of web services. In this paper, we extend the Buddy System to allow a pipe and filter architecture on incoming requests and the corresponding responses.